EmulatorJS/data/minify/index.js

const UglifyJS = require("uglify-js");
const fs = require('fs');
const uglifycss = require('uglifycss');

if (!String.prototype.replaceAll) {
    String.prototype.replaceAll = function(a, b) {
        return this.split(a).join(b);
    }
}
let files = [
    'nipplejs.js',
    'shaders.js',
    'storage.js',
    'gamepad.js',
    'GameManager.js',
    'socket.io.min.js',
    'emulator.js'
]
let code = "";
for (let i=0; i<files.length; i++) {
    code += fs.readFileSync('../'+files[i], 'utf8') + "\n";
}

function minify(source){
    const ast = UglifyJS.parse(source);
    return UglifyJS.minify(ast).code;
}
console.log('minifying');
fs.writeFileSync('../emulator.min.css', uglifycss.processString(fs.readFileSync('../emulator.css', 'utf8')));
const min = minify(code);
console.log('done!');

fs.writeFileSync('../emulator.min.js', min);